13578660312 has 32 divisors (see below), whose sum is σ = 38796172800. Its totient is φ = 3879617184.

The previous prime is 13578660301. The next prime is 13578660341. The reversal of 13578660312 is 21306687531.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40412512 + ... + 40412847.

It is an arithmetic number, because the mean of its divisors is an integer number (1212380400).

Almost surely, 2^13578660312 is an apocalyptic number.

13578660312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13578660312 is an abundant number, since it is smaller than the sum of its proper divisors (25217512488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13578660312 is a wasteful number, since it uses less digits than its factorization.

13578660312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80825375 (or 80825371 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 13578660312 in words is "thirteen billion, five hundred seventy-eight million, six hundred sixty thousand, three hundred twelve".